Water-heating system



Jun 1s, 1929. o, E, FRANK E 1,717,967

' WATER HEATING SYSTEM Filed July 23, 1926 SShe etS-Sheet l gwwmtovOlivel'Z Emir I lfierip. ZlJiZZZ'er June 18, 1929. 0. E. FRANK ET ALWATER HEATING SYSTEM 3 sheets-sheet 2 Filed July 2a, 1926 UZiz/e E an?wilder 3 Sheets-Sheet V Hli I 1 l I I Filed July 4 23, 1926 l I I I 1 II I WATER HEATING SYSTEM J 'o. E. FRANK ErAc 1,717,967

Fatented June 18, 1929.

UNITED STATES 1,717,967 PATENT OFFICE.

OLIVE E.=FRANK, OF BUFFALO, NEW YORK, AND HERBERT P. 'WILDER, OFDETROIT, MICHIGAN.

WATER-HEATING SYSTEM.

Application filed July 23,

This invention relates to water heating systems for use in connectionwith domestic storage tanks and wherein the water may be heated by thefurnace or by a gas burner or by both.

The object of the invention is to provide a combination heater elementwhich is adapted, without valve complications, for use eitherinterchangeably or simultaneously with the furnace or with a gas burnerandby means of which the piping is materially simplitied and reduced incost. With the above object in view the invention consists generally inthe combination of a shell divided into compartments each having aheating coil, and

heads connected at the adjacent inlets and the adjacent outlet ends ofboth coils and piped to the storage tank.

An embodiment of the invention is illustrated in the accompanyingdrawings where- Figure 1 is an elevation of the complete system.

Figure 2 is a front elevation of the water heater.

Figure 3 is a plan view of heater.

Figure 4 is a detailed sectional View on the line 1- 1: of Figure 2.

In Figure 1 the furnace is shown at F, the storage tank at B and thewater heater at H. The heater consists of a shell 1 having a separablefront wall 2, preferably formed in sections and secured to the shell bybolted flange connections 3. The shell has a central vertical partition4c by which it is divided into two compartments 5 and 6. The compartment5 encloses a coil 7 and the compartment 6 encloses a coil 8. The coil 7is used when the water is heated by the furnace and the coil 8 is usedwhen the water is heated by the gas burner 9 which is arranged in thelower part of the compartment 6. The furnace includes a water or steamback (not shown) which is connected to the compartment 5 by ipes 10 and11 whereby the heating medium, hot water or steam as the'case may be,flows through the pipe 10 and compartment 5 and returns to the furnaceby the pipe 11, the water in the coil 7 being heated by the mediumflowing through the compartment 5.

The storage tank B is connected to the coils 7 and 8 by pipes 12 and 13.Communication between these pipes and the coils is provided for by heads14 and 15 respectively which the Water 1926. Serial No. 124,398.

are suitably secured to the sections of the front wall, the terminals ofthe coils being continued through the front wall as shown in Figure 4 inthe case of the head 15, and having water tight connection with thefront wall. The coils 7 and 8 are thus both always filled with Waterfrom the storage tank B. i

In the winter time when the furnace F is in daily use the water in thestorage tank B is heated by the furnace, the coil 7 being utilized. Inthe summer time when the furnace is not in use the water. in the storagetank B is heated by the gas burner 9, the coil 8 being utilized. Duringthe use of the furnace there will be times when the quantity of hotwater required will be in excess of that which has been or may beprovided by the coil 7 and at such times the gas burner may be lightedso as to bring the coil 8into operation, the two.

coils then being used simultaneously until the amount of water desiredhas been heated at which time the use of the gas burner may bediscontinued. The products of combustion of the gas burner may becarried off by a pipe 16 communicating with thetop of the compartment 6and access to the gas burner for any purpose desired may be had by anormally closed door 17 provided at the rear of the compartment 6. Ifdesired the water heater may be employed in connection with any suitabletemperature control applicable to the gas burner sides Such controlsbeing Well known the illustration of the same is unnecessary.

Having fully described our invention, we claim:

1. In a water heating system the combination with a furnace and astorage tank, of a shell divided into laterally adjacent compartments, awater heating coil in each compartment, a separably secured cover platefor each compartment and to which the terminals of the coil in saidcompartment are connected, fluid conducting pipes connecting the furnaceand one compartment, a burner for heating the water in the coil in theother compartment, chambers with which the adjacent terminals of thecoils communicate and water conducting pipes extending between saidchambers and the storage tank.

- 2. In a water heating system a water heater comprising a shell havinga central partition by which it is divided into compartments and havinga separably secured front wall, a heating coil in each compartment,

casings carried by said front Wall and propartment and the furnace and aburner for viding chambers with Which the adjacent heating the Water inthe coil in the other terminals of said coils communicate, in comcompartment. 10 bination with a storage tank, a furnace, In testimonywhereof We aflix our signa- Water conducting pipes extending betweentin-es. 7

said chambers and the storage tank, Water OLIVE E. FRANIQ conductingpipes extending between one com- 7 HERBERT P. VILDER.

